Blue Emitting Polymers as Host Materials of Phosphorescent Dopant and Their Electroluminescent Properties
作者： Yoon Soo Han , Sang Woo Kim , Younghwan Kwon , Lee Soon Park , None
DOI: 10.1080/15421400500236220
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摘要: ABSTRACT Two types of blue electroluminescent conjugated polymers, poly(BP-alt-BCV) and poly(BFMP12-BPV), were prepared by Horner-Emmons polycondensation used as host polymers for the phosphorescent dopant, (bsn)2Ir(acac). Poly(N-vinylcarbazole) (PVK), known a emitting material, was also comparison with these polymers. Electrophosphorescence PLEDs dopant/host systems investigated in terms luminescence, efficiency, emission color, energy transfer. The showed high color purity (x = 0.18, y = 0.19), however, host/phosphorescent (bsn)2Ir(acac) dopant red (x = 0.60, y = 0.37) due to an efficient transfer from polymer dopant.
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